Bitcoin value triples in a month to all-time high of more than $100

At the end of February, Bitcoins hit an all-time trading high of just over $33 . That suddenly looks like chump change, with the value of Bitcoins today moving past $100. You can see nearly real-time changes in the value of Bitcoins at Coinlab , and track its steady rise over the past month at Blockchain . We've seen it go up and down today, fluctuating between $99 and $105. The new high is remarkable given that Bitcoins were only worth about $13.50 at the beginning of this year. The total value of the nearly 11 million Bitcoins in circulation (it's "market cap ") has also soared past $1 billion, after being at less than $50 million one year ago: Enlarge Blockchain The encrypted, peer-to-peer digital currency has gone through some rocky times, even within the past month. Three weeks ago, a technical glitch caused a selloff that dropped prices 23 percent to $37. But its ris...